If you have a sore eye wipe it with your elbow.
More French Proverbs:
Ready money works great cures.French
When we don't have what we like, we must like what we have.
French
Put something sweet in his mouth and send good news to the heart.
French
One should choose a wife with the ears, rather than with the eyes.
French
Self -- love is the worst of all flattery.
French
Too keen an edge does not cut, too fine a point does not pierce.
French